Finding the Fourth Proportional to 11,198.56, 15,445.60 and 7,415.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,198.56 : 15,445.60 = 7,415.04 : x
2. Step 2: Convert to fraction form
   11,198.56/15,445.60 = 7,415.04/x
3. Step 3: Cross multiply
   11,198.56x = 15,445.60 × 7,415.04
4. Step 4: Simplify right side
   11,198.56x = 114,529,741.82
5. Step 5: Solve for x
   x = 114,529,741.82/11,198.56
6. Step 6: Final answer
   x = 10,227.18